Synthesis of Novel Pinocembrin Amino Acid Derivatives and Their Antiaging Effect on via the Modulating DAF-16/FOXO.

PURPOSE

Pinocembrin is a dihydroflavonoid, which is widely found in several plant species. Although pinocembrin has good pharmacological activity, it has poor water solubility and low bioavailability. Therefore, we have modified the structure of pinocembrin with a combination of different amino acids to solve this problem. Moreover, the effect of the antiaging activity of them has not been explored. We aim to investigate the effect of pinocembrin and its amino acid derivatives on the aging of .

METHODS

Pinocembrin was spliced with different amino acids in order to obtain their corresponding derivatives. The preliminary research of pinocembrin and its amino acid derivatives on antiaging effect was studied by using the model. Among all the compounds, the one shows the best antiaging effect was then studied on antiaging mechanism. The protective effect on nematodes under emergency conditions was explained by detecting the ROS content and sod-3p::GFP fusion protein expression in nematodes; the possible anti-aging mechanism of nematodes was determined by DAF-16 nuclear localization experiment and the survival curve of transgenic nematodes model under stress conditions.

RESULTS

showed the best effect on increasing tolerance to thermal and oxidative stress and reduce the accumulation of lipofuscin. In the assay of , reduced intracellular ROS accumulation. Application of to the transgenic mutant TJ356 induced the translocation of the transcription factor DAF-16 from the cytosol to the nucleus, and modulated the expression of SOD-3 (downstream genes of ), which regulates longevity in . Moreover, did not prolong the lifespan of and mutants, suggesting that these genetic pathways are involved in mediating the antiaging effects of .

CONCLUSION

The antioxidant and antiaging properties of may involve in the DAF-16/FOXO transcription process. Pinocembrin amino acid derivatives might be a novel agent for antiaging therapy.